Cape Town時間からEl Malah時間への変換
20:00:58
-1
19:00:58
+7
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+7
+6
+6
+6
+6
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+3
+3
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+2
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+1
+1
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-1
-1
-1
-1
-1
-1
-2
-2
-2
-5
-5
-5
-5
-6
-6
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-9